But too much coffee can have a negative effect because it "can speed up the heart, cause increased heart rate, cause contraction of the blood vessels and increased blood pressure, and certainly if you're prone to rhythm disturbances of the heart, the caffeine at high doses can cause that," Tadwalkar said. Caffeine is considered safe until 300 to 400 milligrams, and after that, it can have a cascade of negative effects.
Clarence DeMar would train for races by running to and from his job at a print shop in Boston, up to 14 miles a day, often carrying a clean shirt. His hard work paid off. He won the 1911 Boston Marathon and competed in the next year's Olympics. But all that running raised eyebrows. At the time, many people and medical experts thought prolonged exercise was dangerous.
The senior study author, Prof Henning Bundgaard, a professor at Copenhagen University hospital, said: The human body evolved on a potassium-rich, sodium-poor diet when we were born and raised on the savannah and eating [fruit and vegetables]. We [now] tend to go to [a] modern diet that is processed foods and, the more processed, we see more and more sodium in the food and less potassium, meaning that the ratio between the two has changed from 10:1 to 1:2 a dramatic change.
Dr. Dmitry Yaranov emphasizes the importance of supplements in supporting heart health, particularly omega-3, magnesium, and vitamin D, while also highlighting healthy lifestyle choices.
Jasmine "JB" Badie emphasizes the importance of rigorous cardio training for performers, stating that the efforts pay off in delivering great shows for audiences.
